2024-03-28T21:20:22Z
https://ajas.journals.ekb.eg/?_action=export&rf=summon&issue=961
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Response of Two Barley Cultivars to Partial Substitution of Mineral Fertilizers by Biofertilizers under New Valley Conditions
S.H.A.
Moslim
R.
Dawood
F.
Abdel-Motagally
Kh.A.
Amer
A field experiments was carried out during of 2014/15 and 2015/16 seasons in the Experimental Farm, Agricultural Research Station of El-Kharga, New Valley Government to study the effects of partially substitution of chemical NPK fertilizers by biofertilizers on two barley cultivars production under New Valley conditions. Seven fertilizers combinations were tested as follows: F1: 100% of recommended NPK fertilizers, F2: 75% of recommended NPK fertilizers + Microbein, F3: 50% of recommended NPK fertilizers + Microbein, F4: 75% of recommended NPK fertilizers + Algae extract, F5: 50% of recommended NPK fertilizers + Algae extract, F6: 75% of recommended NPK fertilizers + Algae extract + Microbein, and F7: 50% of recommended NPK fertilizers + Algae extract + Microbein. Number of spikes m-2, number of grains spike-1, weight of 1000-grains, weight of grains spike-1, biological yield fed-1, grain yield fed-1, straw yield fed-1, and harvest index (%) were recorded at harvest.
Results indicated that the superiority of Giza 134 cultivar over Giza 132 cultivar was confirmed for most studied traits in both seasons.
Double-inoculation of Algae extract and Microbein plus 75% of recommended mineral NPK fertilizers represents 10.14, 18.50 and 16.19% increases in grain, straw and biological yields of barley in the first season; 8.91, 29.42 and 22.15% in the second season, respectively; compared to the application of 100% of recommended mineral NPK fertilizers alone.
Giza 134 cultivar fertilized with 75% chemical NPK + Algae extract + Microbein (F6) gave the highest grain yield (2.69 and 2.97 ton fed-1) and biological yield (8.38 and 9.43 ton fed-1) followed by 50% chemical NPK + Algae extract + Microbein (F7) with the same cultivar (2.53 and 2.88 ton fed-1) and (8.16 and 8.95 ton fed-1), respectively.
It can be concluded that replacing 25 or 50% of chemical fertilizers by double-inoculation of Algae extract + Microbein as biofertilizers to improved yield and its components of Giza 132 and Giza 134 cultivars as well as saving about 25 to 50% of recommended dose of NPK.
NPK fertilization
Bio-fertilizers
Barley
yield and partial substitution
2017
12
31
1
10
https://ajas.journals.ekb.eg/article_6143_3740cd813f32bbbef94ee4e118b0332d.pdf
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Attenuation of Acetone Induced Liver and Kidney Injury by Ginger and Turmeric Root Powder in Chickens
A.
Abd El-Rahman
H.
Elwan
S.
El-Shafei
A.
Abd El-Hafez
Ginger and turmeric are commonly used in food as spices with well-reported antioxidant activity. However, hepatoprotective and nephroprotective effects of ginger and turmeric have not been adequately studied. Therefore, the current study used chicken model with acetone induced liver and kidney injuries to evaluate the hepatoprotective and nephroprotective activities of ginger and turmeric because metabolic functions of chicken and human liver is similar. Eighty cocks were randomized into 5 experimental groups of chicks. The first one served as control. While the second group was received 350mg acetone/kg body weight (given in drinking water) per day for 30 days. The third, fourth and fifth groups were received ginger, turmeric and mix of ginger and turmeric by 1% in food respectively after treatment with acetone. Hematological parameters, liver and renal function tests, hepatic oxidative stress enzymes, as well as, histopathological examination scores were determined. Results indicated that, administration of acetone induces alteration in various hematological parameters, hepatic enzymes and hepatic oxidative stress enzymes in chickens. Dietary supplementation of ginger (GEN) and turmeric (TUR) caused a significant amelioration in some hematological parameters in acetone treated chickens. GEN and TUR treatments could reduce damage induced by acetone in alanine aminotransferase (ALT), aspartate aminotransferase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH), gamma-glutamyl transpeptidase (GGT), glucose, total protein and their fractions levels. Furthermore, acetone promoted a significant increase in urea, uric acid and creatinine levels, while treatment with GEN or TUR or GEN+TUR at the same time of treatment with acetone maintained urea and uric acid concentrations at a level similar to the control group. Interestingly, GEN, TUR and GEN+ TUR treatments significantly ameliorated effects of acetone on chickens by improving the levels of the main antioxidant enzymes (superoxide dismutase SOD, glutathione-S-transferase GST) and malondialdehyde (MDA) a reliable marker of lipid peroxidation in the cells. Histologically, acetone appeared to be hepatotoxic in chick's. Hepatocytes were sensitive to the treatment with acetone and contained large number of congested blood vesicles, cytoplasmic vacuoles, pyknotic nuclei, and lymphocytic infiltration in treated animals. Turmeric and ginger treatments improved the vast majority of hepatic changes. Our findings broadly confirmed that, the supplementation of ginger and turmeric significantly alleviated liver and kidney functions, hematological parameters, as well as, hepatic oxidative stress enzymes and may have applications in the field of hepatoprotective drug development.
chickens
Acetone
Spices
2018
01
05
11
31
https://ajas.journals.ekb.eg/article_7565_4674a0f479fcc991e1b1f8b46dbc08a7.pdf
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Growth of Lactococcus lactis subsp lactis in Milk Under Control of Culture Acidity
Dalia
Kamel
Nanis
Gomma
Dina
Osman
A.
Hassan
The effect of control of culture acidity on growth kinetics of one homofermentative strains of lactic acid bacteria, namely., Lactococcus lactis subsp lactis was evaluated. The bacterial growth was estimated on the base of colony forming units, developed titratable acidity and incubation time .Sterilized skim milk was used as a medium with incubation at 34°C.
Sampling had been carried out at zero time and each 2 hours intervals. After each sampling, a calculated volume of a liquid of 0.1 N sodium hydroxide was added to the culture to adjust the acidity of the remaining volume of the cultures to its initial value at zero time.
The obtained results indicated that:
1- When Lactococcus lactis subsp lactis grown under control of culture acidity lag phase was not observed.
2- Significant effect of acidity control was noticed on the growth rate. Exponential phase of growth was between 2ed and 12th hour of incubation. However, the same culture being grown with control of culture acidity the exponential phase of growth was at interval of time from zero up to 24th hour of incubation.
3- The maximum cell population in case of the control sample was 124 x 105 CFU /ml after 12 hours of incubation. The corresponding values when growth was under control of culture acidity was by a maximum cell population of 35x106 CFU/ml after 32 hour of incubation.
lactic acid bacteria
titratable acidity
colony count
culture acidity control
Mrs Media
2017
12
11
32
39
https://ajas.journals.ekb.eg/article_7568_b1d24ad7f441bd14637ce2ba950af8cd.pdf
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Characterization and Purification of Alkaline Proteases From Viscera of Silver Carp (Hypophthalmichthys molitrix) Fish
M.
Atta
Shimaa
Abd El-Hamed
Samia
Keshk
Proteases from viscera of Silver carp (Hypophthalmichthys molitrix) fish have been extracted and characterized. The alkaline proteases show optimum activity in 0.2M Tris-HCl buffer at pH 8.5 and 45°C using soluble milk casein as substrate. The crude alkaline protease lost about 35% or 51% of its specific activity if it was heated at 50°C or kept at pH 9 for 60 min., respectively. Purification of proteases purified by ammonium sulfate precipitation, gel-filtration using Sephadex G 50 column and ultrafiltration via polyamide membrane (30 KDa) led to increase its specific activity up to 20, 24 and 99 fold, respectively.
Silver carp
alkaline proteases
Characterization
Purification
specific activity
2017
12
27
40
54
https://ajas.journals.ekb.eg/article_7572_e8fa8745fe40b440257ba95b466a8709.pdf
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Survey on the Moisture and Ash Contents in Agricultural Commodities in Al-Rass Governorate, Saudi Arabia in 2017
A.
Afify
A.
Abdalla
A.
Elsayed
B.
Gamuhay
A.
Abu- Khadra
M.
Hassan
M.
Ataalla
A.
Mohamed
Researchers and governments are paid great interest concerning food safety and quality of food stuff. Determination of moisture and ash contents was accomplished by using simple, easy and low cost method to establish a database for agricultural commodities. Twenty four types of agricultural commodities were collected from the local market in Al-Rass governorate, Al-Qassim region, Saudi Arabia. The samples were collected in the period from the beginning of January 2017 to the end of July 2017. The survey show that higher values of moisture contents were found in tomato and cucumber (95.79 and 94.65%, respectively) while the higher values of ash content were found in leafy vegetables in particular spinach and watercress o
2017
11
30
55
62
https://ajas.journals.ekb.eg/article_5752_5c9549390b780475d08d83398c68ffce.pdf
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Effect of some Organic and Bio-Fertilizers on" Thompson Seedless" Grapevines Under New Reclaimed Sandy Soil
T.
EL-Mahdy
Asmaa
Mohamed
M.
F. Badran
During 2015 and 2016 seasons, Thompson Seedless grapevines were fertilized with organic fertilizer, compost, humic acid and bio fertilizer (Ascophyliumnodosum) algae. These fertilizers were used as a partial replacement for inorganic N fertilizer improving yield, lowering pollution and enhancing the efficiency of exportation to foreign markets. The obtained results indicated that application of N as 50% inorganic N plus50% organic N and algae 5ml / vine was the best management system for ensuring the best yield, number of clusters /vine and cluster weight, leaf mineral content and improving the chemical characteristics of berries as total soluble solids (TSS), total acidity (TA) and Tss /acid ratio and decreasing nitrate and nitrite content in the berries.
Thompson seedless grapevines
Humic acid
organic and biofertilizer
2017
12
15
63
71
https://ajas.journals.ekb.eg/article_7573_c8ea077cf2f468c6fdc28bc2805d5749.pdf
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Soil Fertility Status of Some Agricultural Areas in El -Kharaga Oasis, New Valley, Egypt
M.
Gameh
K.
Attia
Asmaa
Ahmed
A.
Abdelhafez
Macro elements availability in soils is an important aspect in context of soil fertility and agricultural productivity. This study was performed to determine the levels of some macro elements availability in El-kharga oasis soils, New Valley, Egypt. To achieve this goal, hundred surface soil samples (0-30 cm) were collected from El-Kharga and Barisoasis, New Valley, Egypt. The collected soil samples were subjected for chemical analyses. The obtained results showed that the dominant problems are salinity and low organic matter content, The summarized data showed that 35% of the samples have low available nitrogen and 65% have medium nitrogen which was associated with low organic matter (100% of the samples have less than 1% OM). However 91% of the samples have high available P(˃15mg/kg), where as 5% and 4% of the samples were categorized as low and medium available P. Also, 98% of the samples were high in available potassium and only 2% were medium. The high content of available P and K may be resulted from the parent material of El-kharga oasis. According to ECe, 49% of the samples have ECe less than 4dSm-1, 51% of the samples were higher than 4dSm-1, (21% medium, 16% high and 14% very high). Considering the soil pH and ECe, the results showed that 42% of the samples were non saline, 50% were saline, 6% were sodic soil and only 2%were saline sodic soils.
El-kharga Oasis
New Valley
soil fertility and NPK
2018
01
17
72
83
https://ajas.journals.ekb.eg/article_7574_24b187410924129694b68ecb6d5f7596.pdf
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Comparative Advantage and Competitiveness of Egyptian Potato Exports in World Markets
Ahmed
Hashem
Hatem
El-Sanosy
Morad
Gerges
The Egyptian agricultural sector is considered one of the important sectors to achieve many achievements, through which the national product can be magnified for its important role in foreign trade. The agricultural sector plays a major role through its contribution to the development of agricultural exports. Potato is one of the most promising export crops in terms of global demand, and the possibility of cultivating them in new lands on the other hand.
In view of the decline of Egyptian exports of potatoes to some international markets in recent times, to enter new competitors as in the European market despite the increase of Egypt's share in the Egyptian-European partnership agreements, as well as instability of the quantities produced, or export prices to the Arab market for competition from exports to countries Other, The study aimed at boosting the export of Egyptian potatoes and avoiding the problem of the decline in international markets, while continuing to grow Egyptian exports of potatoes in these markets by knowing the current production status of potato crop and the main features of exports. And work to maximize the export yield of the crop.
The study was adopted to achieve its objectives on the descriptive and quantitative method in analyzing the economic data and phenomena related to the subject of the study, as well as the use of statistical analysis methods to measure the effect of some economic factors that serve the objective of the research. The most important results were as follows:
1- The cultivated area increased by 18.73 thousand feddans annually during the study period (2002-2015).
2- An increase of kidney production by 227.3 thousand tons per year during the study period (2002-2015).
3. For agricultural exports, it covers only about 42.89% of agricultural imports. Potato exports also cover part of the exports, with exports amounting to about US $ 1,487.5 million in the period of study. The exported quantity increases annually by 2.78 thousand tons.
4 - For the indicators of competitive advantage, it was found that Egypt has a competitive advantage for the export of potatoes compared to Britain, Italy, Russia, Greece, Germany, America, Canada, which are competing countries in the export of potatoes to certain countries.
5. The percentage of potatoes production in Egypt to the total world production was 0.91%, which made it the fourth largest among the producing countries. However, the proportion of potato exports to the total exports of the world was estimated at 4.3%. This is a low ratio. This requires reconsideration of export policies. Competitive position.
6- The Egyptian exports of potatoes are concentrated in Egypt, where 92.72% of them are exported to six countries. According to the Gini coefficient, exports to Italy ranked first with about 24.62%. The share of potato exports to Arab countries (Lebanon) was about 13.56% Of total potatos exports in the study period.
7- The market penetration rate was low for the Egyptian potato importers during the period (2002-2015), which indicates that Egypt's potato can not penetrate these markets. This means that Egypt does not have a competitive advantage in these markets.
It has also been shown that there are countries whose imports have increased and others have decreased. This requires attention to export policies and support for the competitive position.
2017
12
05
84
96
https://ajas.journals.ekb.eg/article_7601_f217984cba353fcd20b3a90115664da1.pdf
Assiut Journal of Agricultural Sciences
AJAS
1110-0486
1110-0486
2017
48
6
Farmers' Knowledge of Integrated Pest Management Techniques of Sugar Beet Crop in Some Villages in El - Minia Governorate
Adham
Zaky Mahmoud
The main objective of this study was to determine the farmers knowledge level of integrated pest management techniques of sugar beet crop, to determine the correlation and percentage of contribution between the respondents knowledge degree of this techniques and some independent variables, to determine the respondents resources of these practices, their suitable integrated pest management techniques of sugar beet, finally identify the most important problems facing them during using this techniques.
This study was conducted at Maghagha, Abu Qerqas, and Mallawi districts, El-Minia governorate which were chosen randomly from area cultivated sugar beet crop, then three villages chosen (one village from each district) i.e.: El-Bahnasa, Grease and Tanda from the studied districts.
Data were collected during May 2017, and using questionnaire with 154 respondents, frequency tables, percentages, rang, mean, standard deviation, simple correlation coefficient of Person, chi square, contingency coefficient, and multiple regression analysis (step–wise), were used to present and analyzing data statistically.
Pest management
Sugar beet crop
El-Minia Governorate
2017
10
16
97
115
https://ajas.journals.ekb.eg/article_7602_93fbe61f227a275097f87194aeb4f8c5.pdf